Labourers work at the construction site of a commercial estate in the southern Indian city of Chennai in this February 1, 2011 file photo. India's central bank governor Raghuram Rajan may raise policy... more&nbsp

Labourers work at the construction site of a commercial estate in the southern Indian city of Chennai in this February 1, 2011 file photo. India's central bank governor Raghuram Rajan may raise policy rates again after shocking markets by increasing them in only his first meeting, signalling he is willing to risk prolonging what is already the lowest economic growth in years in order to quash persistent inflation. To match Analysis INDIA-ECONOMY/CBANK REUTERS/Babu/Files (INDIA - Tags: BUSINESS CONSTRUCTION) less&nbsp